Boiler-cleaner



(No Model.)

lJ. E. MBNDENHALL.

, BOILER CLEANER.

Patented July 18, 1882s v N n A 'P 1 L KW UNITED STATES PATENT OFFICE.

JAMES E. MENDENHALL, OF SPRINGFIELD, OHIO. i

BOILER-CLEANER. t

SPECIFICATION formingpart of Letters Patent No. 261,468, dated July 18, 1882.

'Application sled May 4, 1882. (No model.)

To all whom it may concern:

Be it known that I, JAMES E. MENDENHALL, a citizen of the United States, resident at Springfeld,in the county ot' Clarke and State of Ohio, have invented a new and valuable Improvement in Boiler-Cleaners; and I do hereby declare that the following is a full, clear, and exact description ot' the construction and operation ofthe same, reference being had to the annexed drawings, making a part of this specilcation, and to the letters and figures of reference marked thereon.

1Figure 1 ot' the drawings is a representation of a side View, partly in section, of my device. Fig. 2 is a cross-sectional view of the trough, and Fig. 3 is a side view of the same.

This invention has relation to steam-boiler cleaners or lime-extractors; andit consists in the construction and novel arrangement of the sediment-trough and its cap-plate, the clearingdrum, and pipes ,leading from the cap-plate to the clearing-drum and from the latter back to the boiler, all as hereinafter set forth.

In the accompanying drawings, the letter A designates the boiler, and B B the liues therein.

O represents a cylinder or drum' external to the boiler, and connected thereto by a pipe, D, leading from the top of the drum or cylinder O to the boiler, the connection with the boiler being made at E, or below the Water-line. A perforated plate or diaphragm, F, is located transversely in the middle part ofY the drum, separating its upper from its lower portion or mud-receiver, G. Sometimesthe upperor clearing chamber, H, ofthe drum is tlled with charcoal or other filtering substance.

Longitudinallyn the boileris located a sediment trough or concave plate, K, which extends horizontally over the -tlue-pipes B. An inverted concave plate or cap-plate, L,ofsome what narrower dimensions, is located over the more depressed portion ofthe sediment-trough, a passage or passages,m, being left or formed between the edge of the cap-platel and the sedimen t-trou gh. The cap-plate and the sedimenttroughare usually provided with lugs or ears, and bolts or rivets are passed through, connecting them together. Washers may be introduced between the trough and the edge of the cap-plate on the rivets or bolts, whereby the plates are separated sufficiently to form the passages fm. Exit tubes or pipes p lead from vthe cap-plate L to a pipe, P, which extends from the boiler to the lower part of the drum C.

N represents a discharge pipe or spout leadingfrom the' bottom of the sediment-chamber G of the drum, and provided with a stop-cock, S. The pipe D, which leads from the top of the drum to the boiler, is also provided with a check-valve at V, and a check-valve, V', is arranged in the pipe P.

The operation is as follows: The lime and dirt in the boiler rise to the top of the water before settling to the bottom ot' the boiler or on the flues. As the sediment-trough and its cap-plate are arranged above the iiues, the sediment is caught thereby and settles through the passages m into the deepest part of the trough,

which is under the cap-plate. From this place or chamber between the trough and cap-plate it is discharged by the steam-pressure through the pipe I into the lower chamber, G, of the drum U. In this drum the sediment settles in the chamber G, while the clear water, rising, passes back into the boiler by the return-pipe D. The sediment is finally blown out of the lower chamber of the drum through the discharge-pipe N.

Having described this invention, what l claim, anddesire to secure by Letters Patent,

vA steam-boiler cleaueror lime-extractor consisting, iuconnection with the boiler and a sediment-receiving drum, of the' longitudinal horizontal sediment-trough K above the flues, the cap-plate L above said trough, and the passage or passages m between the trough and cap-plate, the sediment-carrying pipe P, and the return-pipe D, substantially as specified.

In testimonythat I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES EDWARD MENDENHALL. Wltnesses:

0. G. POEFENBERGER,

J. E. BERG. 

